We often interpret a change in someone's mood, tone or behavior as a sign of rejection or emotional distance. But research on emotional contagion, rejection sensitivity and mood instability suggests that what we see may not always tell the whole story.
We have all experienced that suspended moment when we look at the face of someone close to us, someone whose features and way of speaking we know well, and suddenly notice a small detail that raises a question:
They seem less enthusiastic, more withdrawn, or have started speaking with a coldness we are not used to.
As the days go by, we gradually begin to build an entire story around what is happening and rush to judge their intentions, while their thoughts, feelings and whatever they may be going through remain out of sight.
Not every distance is rejection and not every coldness is an end (Pexels)
Emotional contagion is one of the phenomena studied in social psychology. It refers to the way our emotional states can be affected by the feelings of others during interactions with them.
In the 1994 book Emotional Contagion, published by Cambridge University, Elaine Hatfield, John Cacioppo and Richard Rapson examined this phenomenon and proposed that social interaction can automatically prompt us to mimic certain facial expressions, tones of voice, body postures and movements, which can, in turn, affect how we feel.
They also explored why individuals vary in their responses to these cues. Emotional contagion does not necessarily occur in everyone; rather, it is influenced by a combination of social, behavioral and physiological factors, making the transmission of one person's emotional state to another far from inevitable.
This makes it important to distinguish between the common description of what we call "negative energy" and the scientific explanation of the changes that may occur in the way we communicate with others.
More than three decades after the concept of emotional contagion was introduced, a study published in 2026 by the University of Münster in Germany examined more specifically the relationship between an individual's tendency to pick up on other people's emotions and the way they instinctively process emotions.
Understanding others begins when we go beyond what's visible to us (Pexels)
Merle Welten, Annette Kiersting and Thomas Suslow examined this relationship alongside certain aspects of emotional competence. The study involved 104 women with an average age of approximately 24.7 years.
The researchers used an experimental task involving happy, angry and neutral faces, along with measures of emotional intelligence and a number of other psychological factors.
They found no clear relationship between the tendency to pick up on what others are feeling and the automatic processing of emotions. However, recognizing positive emotional states was associated with higher levels of emotional intelligence, while the same finding did not emerge for negative states.
Noticing changes in someone's mood does not mean that we unconsciously take on that mood ourselves, nor does the study establish a causal relationship between emotional intelligence and this response.
Rejection sensitivity is one factor that can affect relationships. Research by Downey and Feldman at Columbia University in 1996 showed that some individuals are more inclined to anticipate rejection and interpret ambiguous signals as being ignored or pushed away, which can, in turn, affect how they interact within a relationship.
Certain signals, such as a delayed response or a change in tone, may have different meanings depending on our previous expectations and our mood, without this meaning that the feeling of rejection itself is not real.
In another long-term study published in 2017, researcher Balbuena and colleagues used data from the British Health and Lifestyle Survey, conducted in 1984 and 1991.
The analysis included 5,352 people who participated in both stages, with the aim of examining the relationship between mood instability and difficulties in interacting with others.
They found that mood instability in 1984 was later associated with the emergence of relationship difficulties in 1991.
Human behavior is too deep to be summed up in a fleeting moment (Pexels)
Depression emerged as the factor most consistently associated with marital problems, while mood instability was associated with challenges in relationships with family members and friends, even after it was taken into account.
These findings do not confirm that mood instability causes relationships to deteriorate, as they were based on survey data rather than an experiment capable of establishing a causal relationship.
Distance and coldness do not necessarily mean rejection or the end of a relationship. They may stem from a passing mood or stressful circumstances. Our interpretation of a situation may also change depending on our sensitivity to rejection, turning something simple into a chain of interpretations and reciprocal reactions.
Mood fluctuations should not be interpreted as sufficient evidence of a psychological disorder, as other people's withdrawal may stem from circumstances and reasons that have nothing to do with us.
The more important question remains: What has actually changed? Their psychological state, their circumstances, the nature of the relationship, or the way we interpret their behavior? Understanding another person sometimes begins with distinguishing between what we observe, what we infer and what we know for certain.
Understanding what is happening around us does not come from searching for ready-made answers or rushing into interpretations that deny reality. It often begins by pausing for a moment and recognizing that human behavior is far more complex than what meets the eye.
